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660 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 484 N.Wlget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue,Suite 8 Sacramento.CA 95834' (916)921-9600 FAX(916)921-010 0 <br /> Analytical <br /> 1455 McDowell Blvd.North.Ste.D Petaluma.CA 94954 (707)792-1865 fAX(707)792-0342 <br /> ltleinfelder-Fairfield Project: NIA Sampled: 9125198 <br /> 780 Chadbourne Road,Ste.D Project Number: 40-3202-01 Received: 9128198 <br /> Fairfield,CA 94585-9643 Project Manager: Randy Wheeler Reported: 1017198 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov. Limits % Limit % Notes* <br /> Batch: 8090394 Date Prepared: 9/29/98 <br /> Blan 8090309-BLKI <br /> Purgeable Hydrocarbons 9129198 ND ug/l 50.0 <br /> Benzene ND 0.500 <br /> Toluene ND 0.500 <br /> Ethylbenzene ND 0.500 <br /> Xylenes(total) ND 0.500 <br /> Mcthyl tent-butyl ether ND 5.00 <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 9.95 60.0-140 99.5 <br /> 1.35 <br /> Benzene 9129198 10.0 10.4 ug/1 70.0-130 104 <br /> Toluene 10.0 9.80 70.0-130 98.0 <br /> Ethylbenzene 10.0 9.75 70.0-130 97.5 <br /> es(total) 30.0 29.0 70.0-130 96.7 <br /> I ten butyl ether 10.0 11.4 70.0-130 114 <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 9.61 60.0-140 96.1 <br /> Matrix Spike $QQQOQ;MS1 $809340-01 <br /> Benzene 9129198 10.0 ND 10.1 ug/l 60.0-140 101 <br /> Toluene 10.0 ND 9.48 60.0-140 94.8 <br /> Ethylbenzene 10.0 ND 9.50 60.0-140 95.0 <br /> Xylenes(total) 30.0 ND 28.4 60.0-140 94.7 <br /> Methyl Cert-butyl ether 10.0 ND 12.3 60.0-140 123 <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 9.73 60.0-140 97.3 <br /> i <br /> 8090309-MSDi 5809340-01 <br /> Benzene 9/29/98 10.0 ND 10.1 ug/i 60.0-140 101 25.0 0 <br /> Toluene 10.0 ND 9.63 60.0-140 96.3 25.0 1.57 <br /> Ethylbenzene 10.0 ND 9.52 60.0-140 95.2 25.0 0.210 <br /> Xylenes(total) 30.0 ND 28.4 60.0-140 94.7 25.0 0 <br /> Methyl tert-butyl ether 10.0 ND 12.7 60.0-140 127 25.0 3.20 <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 9.37 60.0-140 93.7 <br /> Sequoia Analytical-Sacramento `Refer to end of report for text of notes and definitions. <br /> /�4nda, chncider, Laboratory Director Page 4 of 6 <br />